High-voltage receptacle and plug.



F. J. RUSSELL.

HIGH VOLTAGE RBCBETAGLB AND PLUG.

urLloAnoN rum JULY 21,1909

. Patented Sept. 6,'1910.

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37' nlm/wrox Y fr a//t J Russe/ P. :ff RUSSELL. y v HIGH VOLTAGEBEGBPTAGLB AND PLUG.

n APPLICTTION FILEDSJULYYZI, 1909. v

` 969,409 Patented Spt.6,1910.

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` myth-1 www In J. RUSSELL. HIGH VOLTAGE BEGEPTAGLB AND PLUG.

v uruornpxnnnn JULYz1,19o9. Y K i f 969409- Patented sept. 6, 1910.

Snaren-toa e No'. mi)

FRANK J. RUSSELL OF BROOKLYN, NEW YORK.

Y l Applicatonted July 2 To all 'whom it may-concern:

Be itV known t'liatl, l"n.\.\'ii J. Russian., a v

'citizen of the United States, residing at Une of th.` principal objectsis to provide ra receptacle aiid'plng construction that extremelysimple. not only in structure. but iii operation. and the elements ot'.which are so arranged that the danger of short cir- `eiiiting frommoisture or accidental contact is reduced to a minimum, while thecontact elements are :it all times completely housed and protected,whether tiie two ii'ieii'ib'ers are. in assoeiated'or disassoeiatedrelation. n

.i further and important oliject is to provide a structure in which thecontact elements are relieved of all strains, both when the. ineiiibei'sare together. and when they are separated, the tittiiig. moreover, beingstrnctiiraliy ver \"st roug iud rigid, and also being so designedtliat'dii't and dust will not collect lliei'ciii. j

.\ii eiiihodimeiit of the invention that is at'present. considered apreferable one is disclosed in the accompanying drawings, wherem:--

Fieure l is a side elevation of the fitting, shoiimg the two members in.associated relation. Fig. :2 isa longitudinal sectional bien?therethrough.y Fig. 3 is ii similar view 'at right angles to Fig. .2oii` the line of section t--It ofthe latter ligure. Figui is acrosssectioual view ou the. line l4 of Fig. 3. Fig. 5' is a front endview of the receptacle. member. Fig. t'i is a .sectional perspective'view ofthe support. or body of the plug member and tlie contactscarried thereby, the guard or armor sleeve heilig removed.

Similar reference numerals iinlicate coru responding lpai-ts in all thevfigures of the drawings. t f In the embodiment. disclosed, thestructure may be employed in connection with a jiiniztion box 7, of any.well-known type, having Specification of Letters Patent.

1,1909. seran No. 508,853.

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1 `HmHmrorxiaria RECEETAQLB AND PLUG..

PATENT OFFICE. A.

Patente-a septic, 1910.

:in open side S, which is closed the fitting,

said tilting being mounted exteriorly on the.'

box. and secured by suitable fasteners 9.

Thel titting consists of two parts, a recep tacle meinbei t0, and aplugr member '1.1.

The receptacle. member consists of a porcclain'or equivalent body havinga base. lf2 forming the cover-for the open side of the junction box. andprovided with openings l. through which .the fasteners tl are passed,

craiilv interposed between the box and base.

.a gasket 'ol' insulating material tl being pref;

'l`lal rear side of tbc. hase ll has a rearwardly tapered. boss 1f, andits opposite side has a projecting socket portion 1li preferablyarranged obliqucly tothe base iit a downward inclination and having adeep socket or hole end. 'l'his socket is provided with a'thclt ceutralwall or post. lh' integral with'the i'eccj-itacle body and of the sainecross-sectionai shape as the outer wail ofthe'socketl outer -end Y atapered ti'aiisveisely disposed slot It). and longitudinal grooves 20arelalso formed -in opposite Sides thereof. in which are l? closed atits bottom and open at the outer A The said wall or post has in itsseated vielding contact springs 2l. that have .di

their onter ends slightly bowed.y as illus-' ti'ated at 22.. The innerright-:united ends 2'. of these contact. springs are located iiireicssed seats i225 at the bottoni of tliesocket A v IT and receivefastenersl that pass through tln bottoni' ofthe socket and have.'hi-:ills housed in seats .25 formed in the rear side of the. base.'l`liese fasteners constitute .he live wire terminal connections.

'lhe plug membercomprises a body orsupport :iti of insulating materialhaving on its inner end a projecting transversely dipesed insulatingtongue 27 that is arranged 'to loosely register in the slot. 19.l Thebody furthermore has an outwardly extending portion- 2S provided 'withopposite recesses tt separated by an .insulating bridge 30. Wireterminal binders Ill are locate:l iii said recesses andy engaget'lie;outer inse ends 32 of spring contacts Il?) that -pass through thekmain portion of the body or. .support-"2li, and

project on opposite sides of and in spaced rclatioii to t-lie tongue:27. These contact elenientsll a rearranged to Slide longitudinaliy inthe grooves '20 upon opposite sides of the. center w-ill or post 1S andpass beneath the curved engaging ends 22'. of the contacts 21', asillustrated in Fig. 3. 'llie .said insulator support 26' is located andSecured within a siov cylindrical guard sleeve or armor 34 that iS4arranged to register in the socket 17 and.

surround the post 18. This sleeve is preferably made of fiber oi' otherinsulating material and it carrieson one kside of its inner end a headthat slides longitudinally in a groove 3G Aformed in one side of thesocket.

' This head properly directs the plug member to its operative position,and prevents its rotation, as will. he obvious. The outer end of v`thesleeve 34 detachably receives a wooden or equivalent bushing 37 having ata )ered opening 3S therethrough, through whic i the j usual extensionwires pass.

rlhere are many advantages for the structure as disclosed. In the firstplace, a. deep socket or hole 17 is provided in thereceptaclepmemher forthe plug member Vand its contacts, and the thick insulating post or wall18 arranged between the contacts 2l of said receptacle member affordseffectual protection to the terminals against` being short eircuited bymoisture or by coming into contaetwith outside articles. Furthermore,the

slotin the end of the post serves to prevent moisture creeping fromcontact to contact.,

` and also constitutes au air gap'to prevent an are across the terminalswhen the plug is' pulled. ln the plug member, 1t. will be ob` servedthat the contacts are completely housed by the armor or sleeve, and saidcontacts are thus protected both when the plug is in and out of thereceptacle. Furthermore,

4this arnior takes `all the .st-rain and prevents breakage of thecontacts orfot the 'support for said contacts. lt will he obvious,there-y fore, thatxthe arrangement ot' parts ailfords a high degree ofprotection both mechanically and electrically, and said parts are at thesaine time very eonipactly combined. 'lhe downward angle of the plugwhenused on a wall is advantageous, inasmuch as it dellects moisture anddirt and prevents its entrance into the socket.

From the foregoing it is thought that thel construction. operation andmany advantages of the herein described invention will be appa ri-nt tothose skilled in the arl., witl1- out further description, and it willhe under located in the socket and havingr a slot in one end, contactsarranged on opposite sides of the post', a plug member comprising asupport having a tongue that engages in the slot of the post, andcontact elements carried by the support and coperatingwith the cont-actsof the receptacle member.

2. In an electrical litting, a receptacle member having a socket, apost; arranged in the socket in spaced relation to the side wallsthereof, contact elements ai' 'aiigedalongside the post, and a plugmember comprising ii bod)v or support of insulating material, contactscarried by the saine, a sleeve surrounding the body or support andfitting in tho socket, said sleeve surrounding the post, and

said post having aslot in its outer end and the body having a tonguethat engages in the slot.

3. In an electrical litting, areceptacle member having a socket, alongitudinally disposed insulating post' located in the socket andhaving a slot iii its 'outer end,v

contacts arranged on opposite sides of the post, a plug membercomprising a support having a tongue that engagesin vthe slot` ot' thepost. a guard sleeve that extends into the socket, and siirroumls thepost, and coutact elements carried b v the support. and eooperating withthe contacts of thel receptacle member. i g

-1-. In an electrical fitting, a junction box having an open side,wreccptacle member mounted on the exterior of said junction box andhaving an angularly disposed socket a post arranged in the socket inspart-il relation to thc side walls thereof, contact elements disposedalongside the post, and a plug iueinbcr comprising a body or support ol'insulatingr material, contacts carried b v thc sauic. an aiiuorsleevesurroundingr the body or support. and tilting iii the socket, saidsleeve surrounding the post, said post. having a slot in its outcr cudand the body having atongue that 'engages in the slot., and a bushingarranged in the outer cnd of the armor sleeve.

k3. ln an electrical fitting, a i'cceptaelemember having apliigiec.civiiig socket anda wall ot' insulating nailerial arrangedwithin said socket between the. receptacle contai-ls and provided at oneend with a groove forming an insulating air gap. ,Y

f in lcstiuiony whereof l hereunto allix'iu \r signature iii thepresence of two witnesses.

FRANK J. RUSSELL.

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